Report Number: CS-TR-95-1555
Institution: Stanford University, Department of Computer Science
Title: Real-time Database Experiences in Network Management
Application
Author: Kiriha, Yoshiaki
Date: September 1995
Abstract: This report discusses our experiences with real-time
databases in the context of a network management system, in
particular a MIB (Management Information Base)
implementation. We propose an active and real-time MIB
(ART-MIB) architecture that utilizes a real-time database
system. The ART-MIB contains a variety of modules, such as
transaction manager, task manager, and resource manager.
Among the functionalities provided by ART-MIB, we focus on
transaction scheduling within a memory based real-time
database system. For the developed ART-MIB prototype, we have
evaluated two typical real-time transaction scheduling
algorithms: earliest deadline first (EDF) and highest value
first (HVF). The main results of our performance comparison
show that EDF outperforms HVF under a low load; however, HVF
outperforms EDF in an overload situation. Furthermore, the
fact that the performance crossover point closely depends on
the magnitude of the scheduler queue, has been validated.
http://i.stanford.edu/pub/cstr/reports/cs/tr/95/1555/CS-TR-95-1555.pdf